how to extract the time interval where variables start to increase

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bay rem
bay rem le 27 Fév 2016
i have a function and i plot for every moment results of this function, such the image indicate, ,and then i want to detect the moment where variables start to increase and stop increasing

Réponses (1)

Image Analyst
Image Analyst le 28 Fév 2016
Try this:
indexes = find(signal < -50);
That will tell you whenever an signal value is less than -200. If you want to find only stretches where it meets the condition for some minimum number of elements, you can use bwareaopen() to throw out short stretches.

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